Stainless Steel Pipe Flanges ASME B16.5 SS304

Shop our high-quality stainless steel pipe flanges ASME B16.5 SS304 at our factory. Durable, reliable, and perfect for a variety of industrial applications.

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  • Stainless Steel Pipe Flanges ASME B16.5 SS304
  • Stainless Steel Pipe Flanges ASME B16.5 SS304
  • Stainless Steel Pipe Flanges ASME B16.5 SS304

PRODUCTS DETAILS

For pipe flanges and flanged fittings larger than 24" NPS, ASME/ANSI B16.47 should be referenced. Common Flange Types ● Slip-On Flanges: These flanges are commonly stocked in ANSI Class 150, 300, 600, 1500 & 2500 up to 24" NPS. They are "slipped over" the pipe or fitting ends and welded in position, allowing for fillet welds both inside and outside the flange. Reduction versions are used to reduce line sizes when space is limited. ● Weld Neck Flanges: These flanges have a distinct long tapered hub and a smooth transition of thickness, ensuring a full penetration weld connection to the pipe or fitting. They are used in severe service conditions. ● Lap Joint Flanges: Paired with a stub end, lap joint flanges are slipped over the stub end fitting and connected by welding or other means. Their loose design allows for easy alignment during assembly and disassembly. ● Backing Flanges: These flanges lack a raised face and are used with backing rings, providing cost-effective solutions for flange connections. ● Threaded (Screwed) Flanges: Bored to match specific pipe inside diameters, threaded flanges are machined with tapered pipe threads on the reverse side, primarily for smaller bore pipes. ● Socket Weld Flanges: Resembling slip-on flanges, socket weld flanges are machined to match pipe size sockets, allowing fillet welding on the back side to secure the connection. They are typically used for smaller bore pipes. ● Blind Flanges: These flanges have no center hole and are used to close or block the end of a piping system. These are some of the common types of pipe flanges used in various industrial and commercial applications. The choice of flange type depends on factors like the pressure, temperature, and type of fluid being transported, as well as specific project requirements. Proper selection and installation of flanges are crucial for the safe and efficient operation of piping systems.
ASME B16.5: Carbon Steel, Stainless Steel, Alloy Steel
EN 1092-1: Carbon Steel, Stainless Steel, Alloy Steel
DIN 2501: Carbon Steel, Stainless Steel, Alloy Steel
GOST 33259: Carbon Steel, Stainless Steel, Alloy Steel
SABS 1123: Carbon Steel, Stainless Steel, Alloy Steel
Raw Material Checking, Chemical Analysis, Mechanical Test, Visual Inspection, Dimension Check, Bend Test , Flattening Test, Impact Test, DWT Test, Non-Destructive Examination(UT, MT, PT, X-Ray, ), Hardness Test, Pressure Testing, Seat Leakage Testing, Metallography Testing, Corrosion Testing, Fire Resistance Testing, Salt Spray Testing, Flow Performance Testing, Torque and Thrust Testing, Painting and Coating Inspection, Documentation Review…..Flanges are important industrial parts used to connect pipes, valves, equipment and other piping components. They play a key role in connecting, supporting and sealing piping systems.Flanges serve as crucial components in various industrial applications, including:

ASME B16.5: Pipe Flanges and Flanged Fittings

Materials: Carbon Steel, Stainless Steel, Alloy Steel

EN 1092-1: Flanges and Their Joints - Circular Flanges for Pipes, Valves, Fittings, and Accessories, PN Designated - Part 1: Steel Flanges

Materials: Carbon Steel, Stainless Steel, Alloy Steel

DIN 2501: Flanges and Lapped Joints

Materials: Carbon Steel, Stainless Steel, Alloy Steel

GOST 33259: Flanges for Valves, Fittings, and Pipelines for Pressure to PN 250

Materials: Carbon Steel, Stainless Steel, Alloy Steel

SABS 1123: Flanges for Pipes, Valves, and Fittings

Materials: Carbon Steel, Stainless Steel, Alloy Steel

At Womic Steel, we understand the importance of secure packaging and reliable shipping when it comes to delivering our high-quality pipe fittings to your doorstep. Here's an overview of our packaging and shipping procedures for your reference: Packaging: Our pipe flanges are carefully packaged to ensure they reach you in perfect condition, ready for your industrial or commercial needs. Our packaging process includes the following key steps: ● Quality Inspection: Before packaging, all flanges undergo a thorough quality inspection to confirm they meet our stringent standards for performance and integrity. ● Protective Coating: Depending on the type of material and application, our flanges may receive a protective coating to prevent corrosion and damage during transportation. ● Secure Bundling: Flanges are bundled together securely, ensuring they remain stable and protected throughout the shipping process. ● Labeling and Documentation: Each package is clearly labeled with essential information, including product specifications, quantity, and any special handling instructions. Relevant documentation, such as certificates of compliance, is also included. ● Custom Packaging: We can accommodate special packaging requests based on your unique requirements, ensuring your flanges are prepared exactly as needed. Shipping: We collaborate with reputable shipping partners to guarantee reliable and timely delivery to your specified destination.Our logistics team optimizes shipping routes to minimize transit times and reduce the risk of delays.For international shipments, we handle all necessary customs documentation and compliance to facilitate smooth customs clearance.We offer flexible shipping options, including expedited shipping for urgent requirements.● Connections ● Sealing ● Pressure Management● Piping Systems ● Valves ● Equipment

Size in Inch

Size in mm

Outer Dia.

Flange Thick.

Hub OD

Flange Length

RF Dia.

RF Height

PCD

Socket Bore

No of Bolts

Bolt Size UNC

Machine Bolt Length

RF Stud Length

Hole Size

ISO Stud Size

Weight in kg

 

 

A

B

C

D

E

F

G

H

 

 

 

 

 

 

 

1/2

15

90

9.6

30

14

34.9

2

60.3

22.2

4

1/2

50

55

5/8

M14

0.8

3/4

20

100

11.2

38

14

42.9

2

69.9

27.7

4

1/2

50

65

5/8

M14

0.9

1

25

110

12.7

49

16

50.8

2

79.4

34.5

4

1/2

55

65

5/8

M14

0.9

1 1/4

32

115

14.3

59

19

63.5

2

88.9

43.2

4

1/2

55

70

5/8

M14

1.4

1 1/2

40

125

15.9

65

21

73

2

98.4

49.5

4

1/2

65

70

5/8

M14

1.4

2

50

150

17.5

78

24

92.1

2

120.7

61.9

4

5/8

70

85

3/4

M16

2.3

2 1/2

65

180

20.7

90

27

104.8

2

139.7

74.6

4

5/8

75

90

3/4

M16

3.2

3

80

190

22.3

108

29

127

2

152.4

90.7

4

5/8

75

90

3/4

M16

3.7

3 1/2

90

215

22.3

122

30

139.7

2

177.8

103.4

8

5/8

75

90

3/4

M16

5

4

100

230

22.3

135

32

157.2

2

190.5

116.1

8

5/8

75

90

3/4

M16

5.9

5

125

255

22.3

164

35

185.7

2

215.9

143.8

8

3/4

85

95

7/8

M20

6.8

6

150

280

23.9

192

38

215.9

2

241.3

170.7

8

3/4

85

100

7/8

M20

8.6

8

200

345

27

246

43

269.9

2

298.5

221.5

8

3/4

90

110

7/8

M20

13.7

10

250

405

28.6

305

48

323.8

2

362

276.2

12

7/8

100

115

1

M24

19.5

12

300

485

30.2

365

54

381

2

431.8

327

12

7/8

100

120

1

M24

29

14

350

535

33.4

400

56

412.8

2

476.3

359.2

12

1

115

135

1 1/8

M27

41

16

400

595

35

457

62

469.9

2

539.8

410.5

16

1

115

135

1 1/8

M27

54

18

450

635

38.1

505

67

533.4

2

577.9

461.8

16

1 1/8

125

145

1 1/4

M30

59

20

500

700

41.3

559

71

584.2

2

635

513.1

20

1 1/8

140

160

1 1/4

M30

75

24

600

815

46.1

663

81

692.2

2

749.3

616

20

1 1/4

150

170

1 3/8

M33

100

Size in Inch

Size in mm

Outer Dia.

Flange Thick.

RF Dia.

RF Height

PCD

No of Bolts

Bolt Size UNC

Machine Bolt Length

RF Stud Length

Hole Size

ISO Stud Size

Weight in kg

A

B

C

D

E

1/2

15

90

9.6

34.9

2

60.3

4

1/2

50

55

5/8

M14

0.9

3/4

20

100

11.2

42.9

2

69.9

4

1/2

50

65

5/8

M14

0.9

1

25

110

12.7

50.8

2

79.4

4

1/2

55

65

5/8

M14

0.9

1 1/4

32

115

14.3

63.5

2

88.9

4

1/2

55

70

5/8

M14

1.4

1 1/2

40

125

15.9

73

2

98.4

4

1/2

65

70

5/8

M14

1.8

2

50

150

17.5

92.1

2

120.7

4

5/8

70

85

3/4

M16

2.3

2 1/2

65

180

20.7

104.8

2

139.7

4

5/8

75

90

3/4

M16

3.2

3

80

190

22.3

127

2

152.4

4

5/8

75

90

3/4

M16

4.1

3 1/2

90

215

22.3

139.7

2

177.8

8

5/8

75

90

3/4

M16

5.9

4

100

230

22.3

157.2

2

190.5

8

5/8

75

90

3/4

M16

7.7

5

125

255

22.3

185.7

2

215.9

8

3/4

85

95

7/8

M20

9.1

6

150

280

23.9

215.9

2

241.3

8

3/4

85

100

7/8

M20

11.8

8

200

345

27

269.9

2

298.5

8

3/4

90

110

7/8

M20

20.5

10

250

405

28.6

323.8

2

362

12

7/8

100

115

1

M24

32

12

300

485

30.2

381

2

431.8

12

7/8

100

120

1

M24

50

14

350

535

33.4

412.8

2

476.3

12

1

115

135

1 1/8

M27

64

16

400

595

35

469.9

2

539.8

16

1

115

135

1 1/8

M27

82

18

450

635

38.1

533.4

2

577.9

16

1 1/8

125

145

1 1/4

M30

100

20

500

700

41.3

584.2

2

635

20

1 1/8

140

160

1 1/4

M30

130

24

600

815

46.1

692.2

2

749.3

20

1 1/4

150

170

1 3/8

M33

196

Size in Inch

Size in mm

Outer Diameter

Flange Thickness

Hub OD

Weld Neck OD

Welding Neck Length

Bore

RF Diameter

RF Height

PCD

Weld Face

 

 

A

B

C

D

E

F

G

H

I

J

1/2

15

90

9.6

30

21.3

46

Welding Neck bore is derived from the pipe schedule

34.9

2

60.3

1.6

3/4

20

100

11.2

38

26.7

51

42.9

2

69.9

1.6

1

25

110

12.7

49

33.4

54

50.8

2

79.4

1.6

1 1/4

32

115

14.3

59

42.2

56

63.5

2

88.9

1.6

1 1/2

40

125

15.9

65

48.3

60

73

2

98.4

1.6

2

50

150

17.5

78

60.3

62

92.1

2

120.7

1.6

2 1/2

65

180

20.7

90

73

68

104.8

2

139.7

1.6

3

80

190

22.3

108

88.9

68

127

2

152.4

1.6

3 1/2

90

215

22.3

122

101.6

70

139.7

2

177.8

1.6

4

100

230

22.3

135

114.3

75

157.2

2

190.5

1.6

5

125

255

22.3

164

141.3

87

185.7

2

215.9

1.6

6

150

280

23.9

192

168.3

87

215.9

2

241.3

1.6

8

200

345

27

246

219.1

100

269.9

2

298.5

1.6

10

250

405

28.6

305

273

100

323.8

2

362

1.6

12

300

485

30.2

365

323.8

113

381

2

431.8

1.6

14

350

535

33.4

400

355.6

125

412.8

2

476.3

1.6

16

400

595

35

457

406.4

125

469.9

2

539.8

1.6

18

450

635

38.1

505

457.2

138

533.4

2

577.9

1.6

20

500

700

41.3

559

508

143

584.2

2

635

1.6

24

600

815

46.1

663

610

151

692.2

2

749.3

1.6

Flange Materials Flanges are welded to pipe and equipment nozzle. Accordingly, it is manufactured from the following materials; ● Carbon steel ● Low alloy steel ● Stainless steel ● Combination of Exotic materials (Stub) and other backing materials The list of materials used in manufacturing is covered in ASME B16.5 & B16.47. ● ASME B16.5 -Pipe Flanges and Flanged Fittings NPS ½” to 24” ● ASME B16.47 -Large Diameter Steel Flanges NPS 26” to 60” Commonly used Forged material grads are ● Carbon Steel: – ASTM A105, ASTM A350 LF1/2, ASTM A181 ● Alloy Steel: – ASTM A182F1 /F2 /F5 /F7 /F9 /F11 /F12 /F22 ● Stainless Steel: – ASTM A182F6 /F304 /F304L /F316 /F316L/ F321/F347/F348Standard Information - ASME/ANSI B16.5 & B16.47 - Pipe Flanges and Flanged Fittings The ASME B16.5 standard covers various aspects of pipe flanges and flanged fittings, including pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and designating openings for these components. This standard includes flanges with rating class designations ranging from 150 to 2500, covering sizes from NPS 1/2 through NPS 24. It provides requirements in both metric and U.S units. It's important to note that this standard is limited to flanges and flanged fittings made from cast or forged materials, including blind flanges and specific reducing flanges made from cast, forged, or plate materials.

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